﻿#include<QtWidgets>
#include "analogclock.h"
#include<QDebug>

#define SIZE 400

AnalogClock::AnalogClock(QWidget *parent) : QWidget(parent)
{
    QTimer *timer = new QTimer(this);
    connect(timer,SIGNAL(timeout()),this,SLOT(update()));
    timer->start(1000);

    setWindowTitle("Anaglog Clock");
    resize(SIZE,SIZE);
}


void AnalogClock::paintEvent(QPaintEvent *event)
{
    static const QPoint hourHand[3] = {
        QPoint(7, 8),
        QPoint(-7, 8),
        QPoint(0, -40)
    };
    static const QPoint minuteHand[3] = {
        QPoint(7, 8),
        QPoint(-7, 8),
        QPoint(0, -70)
    };
    static const QPoint secondHand[3] = {
        QPoint(2, 8),
        QPoint(-2, 8),
        QPoint(0, -90)
    };

    QColor hourColor(127, 0, 127);
    QColor minuteColor(0, 127, 127, 191);
    QColor secColor(127, 127, 127, 191);

    int side = qMin(width(),height());
    QTime time = QTime::currentTime();

    QPainter painter(this);

    painter.setRenderHint(QPainter::Antialiasing);
    painter.translate(width()/2,height()/2);
    painter.scale(side/SIZE,side/SIZE);

    painter.setPen(Qt::NoPen);
    painter.setBrush(hourColor);
    painter.save();
    painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0)));
    painter.drawConvexPolygon(hourHand, 3);

    painter.restore();
    painter.setPen(hourColor);
    for (int i = 0; i < 12; ++i) {
        painter.drawLine(88, 0, 96, 0);
        painter.rotate(30.0);
    }


    painter.setPen(Qt::NoPen);
       painter.setBrush(minuteColor);

       painter.save();
       painter.rotate(6.0 * (time.minute() + time.second() / 60.0));
       painter.drawConvexPolygon(minuteHand, 3);

       painter.restore();
       painter.setPen(minuteColor);
       for (int j = 0; j < 60; ++j) {
           if ((j % 5) != 0)
               painter.drawLine(92, 0, 96, 0);
           painter.rotate(6.0);
       }

    painter.restore();
    painter.setPen(Qt::NoPen);
    painter.setBrush(secColor);
    painter.save();
    painter.rotate(6 * time.second());
    painter.drawConvexPolygon(secondHand, 3);
}
